Excavating-machine.



G. A. WHIPPLE. EXOAVATING MACHINE. APPLICATION FILED JAN.18, 1909.

1,015,525. Patented Jan. 23, 1912.

3 SHEETS-SHEET 1. Q "'5 Patented Jan. 23, 1912.

G. A. WHIPPLE.

EXGAVATING MACHINE.

APPLICATION FILED JAN. 18, 1909.

G. A. WHIPPLE.

EXGAVATING MACHINE. APPLIOATION FILED JAN. 18, 1969.

Patented Jan. 23, 1912.

3 SHEET SSHEET 3.

UNITED STATES PATENT orrrcnp CHARLES WHIPPIlE, F ELK RIVER, MINNESOTA, ASSIGNOR TO THE GOPHEE MANUFACTURING COMPANY, A CORIPQRATION OF SOUTH DAKOTA.

EXCAVATING-MACHINE.

1,015,525; I Specification of Letters Patent. Patented Jan. 23,1912. Application filed January 18, 1909. Serial No. 472,882.

To all whom it may concern: the ends of these beams, I arrange scows Be it known that I, CHARLES A.- WHIPPLE, 14, secured to the beams by straps 15 and of Elk River, Sherburne county, Minnesota, extending the full length of the machine on have invented certain new and useful Imeach side thereof. These scows are comprovements in Excavating-Machines, of paratively narrow and have flat bottoms up- 60 which the following is a specification. wardly curved at each end, as indicated in The object of my invention is to provide Fig. 3, to facilitate the movement of the an excavating machine, designed particumachine forward or backward when it is larly for work in swampyor wet lands where resting upon the scows. In moving the mait would be impossible to use a machine on chine over solid ground, the operator will 65 wheels; lower the axles and the carrying wheels until A further object is to provide a machine the scows are out of contact with the ground. of very much lighter weight than machines When however, the-machine is excavating of this type as ordinarily constructed and in swampy soil, the carrying wheels will be hence easier to operate and to move from raised and the weight of the machine en- 70. place to place. tirely supported by the scows and the carry- A further object is to provide an excavat: ing capacity of these scows will of course be ing machine that is capable of movement determined by suitable computation, accordforward or backward or to one side of the ing to the size and weight of the machine, line of movement, while operating in marshy it being merely necessary to increase the soil. width of the scows to enable them to sup- A further object is to provide a machine port a greater load. that is equipped with means to adapt it for At the forward end of the machine, 1 ar- I use on dry as well as wet land. range an engine 16 belted to a double crank 25 My invention consists generally in various shaft 17 that is mounted on the machine constructions and combinations all as hereframe near the middle thereof. A second inafter described and particularly pointed crank shaft 18 is provided at the forward out in the claims. endof the frame, driven by a chain belt 19 In the accompanying drawings, forming from the crank shaft 17 and a drum 20. is 30 part of this specification, Figure l is a plan provided near the shaft 18 and has a cable view of an excavating machine embodying 21 wound thereon. A series of arms 22 are my invention, Fig. 2 is a longitudinal, secmounted on the crank shaft 18 and a series tional view of the same, Fig. 3 is a side eleof clamping straps 23 are provided on the vation, Fig. 4 is a detail of one of the hoistdrum 20 having shoes 24 at one end that are- 35 in drums and clamping shoes therefor, Fig. adapted to contact with the surface of the 5 1s a similar view, showing the means for drum. Pins 25 are pivotally connected locking the drum, Fig. 6 is a plan View, with said shoes and arranged to sl1de 1n illustrating a modified construction of the guides 26 on the arms 27 against the tension clamping mechanism, Fig. 7 is an end view of the springs 28. The other ends of the 40 of the same. clamps are pivotally connected to links 29 In the drawing, 2 represents a frame of that are attached at one end to the shoes and suitable material, preferably of steel I- at the other end to the arms 22. The arms beams, and 3 and 4 are forward and rear 27 are mountedon a rock shaft 30 having a axles attached respectively to bars 5 and 6, crank 31 connected by a rod 32 with an'op- 45 which are pivoted at 7 and 8 on the machine crating lever 33 When this lever is operframe to allow a vertical movement of the ated in one direction, the shaft w 11l be axles on the carrying wheels 9. Posts 10, rocked aga1nst the tension of the-spring 25 and 11 are mounted in the machine frame and the shoe Wlll be forced into engagement and have ball and socket connections 12 with with the drum. The movement of the crank 50 the axles and by revolving these posts, the Shaft 18 w1ll then have the effect of rotating operator on the machine may raise and lower the drum a limited distance and the off-sets the axles and carrying wheels. in the crank shaft are arranged so that the Beneath the frame 2, I provide a series of clamping shoes will be operated successively transverse I-beams 13, which extend beyond to engage the drum -that 1s, one shoe will 55 the machine frame on each side and beneath move mil) COIltfi-Ot Wlt-h the drum Just as anwhole series of clamps until the last one is The cable extends forward to an anchor post reached and when that has clamped the drum and performed its function, the first clamp of the series will be in position to again engage the rotating drum. The cable that is wound on the drum 20 passes between anti-friction wheels 34 on the machine frame and contacts with a pulley 35 that is connected by a chain 36 to the end of one of the I-beams 13.

(not-shown) driven into the ground a suitable distance from the machine and when the engine is started and the drum 20 revolved, the cable will be wound thereon and the machine will be moved toward the anchor post. If movement in the opposite direction is desired, the cable may be brought around to the side in contact with the pulley wheels 37 and 38 and from thence to a pulley block on an anchor post andback to the machine. -A sluing or lateral movement of the machine may be obtained by carrying the cable 21 out to the side of the machine around one of the pulleys 37 or 38 and from thence to the anchor post, located at a suitable distance. I am thus able to move the machine forward or backward or swing it to the side.

I provide other drums on the machine frame, corresponding to the one described and operating in substantially the same mannerand I will designate these drums by the same reference numerals as the one first described with the addition of the distinguishing exponent letters.

. Referring to Fig. 1, 20 and 20 represent r drums arranged one upon each side of the 40 crank shaft 17, one drum having a cable 39 leading over a pulley wheel 40 on a mast 41 to an excavating dipper 42, which forms the subject matter of a companion application herewith and which I will not describe in detail herein. The other drum 20 has a cable 43 leading over a block 44- on the mastto a bail 45 on the dipper. This cable 39 controls the vertical movement of a boom 46, whereon the dipper is supported. By operation of the drum 20, the dipper and the boom are raised or lowered in the operation of the machine. The clamps 23 and 23 on the drums control their revolution and mechanism similar to that already described with reference to the drum 20 is provided, for rendering the clamps operative or inoperative, said mechanism including shafts 30 and 30 having connections 32 and 32 with operating levers 33 and 33*. By

means of these levers, the operator can control the clamps, the revolution of the drums 20 and 20 and the movement of the boom and dipper. v

A third crank'shaft47 is provided, driven from the shaft 17 through belts 48 and 49 to obtain the desired reduction in speed and on this crank shaft is a fourth drum, which I will designate by the reference numeral 20. This drum has a cable 48 extending to a turn-table 49whereon the boom 46 is supported. By the oscillation of this turntable, the boom is swung horizontally to adjust the dipper in front or on either side of the machine. 4 Two sets of clamping bands are provided in connection with this drum, one above and the other below the drum, represented herein by 23 and 23 "These clamps are controlled by a mechanism corre sponding to that heretofore described and I will indicate the mechanism with the same reference numeral with the addition of the exponent c. Aratchet 49 is provided in connection with the dipper-controlling drum 20 and a dog 50 is cont-rolled'by a rod 51, which extends to a lever 51. This dog or pawl has a pivoted toe 50 that is adapted to engage the teeth of the ratchet wheel and swing on its pivot, when power is applied to operate the pawl, to allow the disengagement of the toe from the teeth of the ratchet. I am thus able to disengage the pawl from the ratchet, even when the drum is under the strain of a load. A similar lever 33 controls the rock shaft 30 and the clamping or release of the drum 20. A brake strap 52 is provided for the drum 20 controlled by a shaft 53 having an arm 54, leading to a treadle 55. By means of this brake strap, the boom drum may be locked to support theboom in any desired position when the clamping straps for said drum are released.

B means of the foregoing described mec anism, the operator, stationed near the series of levers described, has absolute and perfect control over the boom and the dipper-operating mechanism and can also control the drum 20 and the travel of the machine. It will be understood that my purpose in using these drums and clamping straps is to obtain great power within a small compass and without employing heavy mechanical parts, and at the same time, provide a mechanism, which will be positive and reliable at all times.

In Figs. 6 and 7, I have illustrated a modified construction, which consists in provid-, in a drum 54 with a series of ratchet teeth 55 and dogs .56 engaging these teeth each having a part 56, which will allow the disengagement of the dog from the teeth, (as described above) "even when a heavy strain is applied to the drum cable. Each dog is held in an operative position by means of a spring 57 on a rod 58 movable in an arm 59, said arm being mounted on a rock shaft 60, which has an arm 61 oscillated by means of an operatinglever. The crank shaft arm 62 whereon the dog 56 is pivoted, corresponds substantially to those used in connection an anchor post is suit-able distance frame and projecting with the clamping straps. The operation of the machine will be substantially the same when either form of drum-engaging device is used. In the operation of the machine, driven into the ground a ahead and the machine of the drum and drawn along bymeans cable,as p'arat-us, which I have not thought necessary to illustrate, may be employed. The machine is then moved along and the boom raised'and lowered or swung to either side to set the dipper in its working position and allow it to dump its load. The machine will have a wide radius of movement owing to the sweep of the boom from side to side. approaching wet or marshy ground, where an ordinary excavating machine could not be used, the wheels will beraised, allowing the scows to contact with the ground and support the machine, the movement forward or backward continuing in the same manner i tion with a frame having carrying 1 of scows provided on eachiside of said frame,

as when the machine rests upon the wheels.

I have found a machine of this type to be extremely eificient, capable of working in a swamp and as the operating mechanism is comparatively simple, the machine can be constructed so that it will weigh very much less than excavating machines as ordinarily built and it will scows to be large or unwieldy to enable them to support the load in soft ground or shallow water. The dipper, as described in. my companion application, has a filling movement toward the machine and can be easily and quickly the operation of the drums.

' I claim as my invention 1. Man excavating machine, the 'combination with a frame having carrying wheels, of scows provided one on each sideof said machine, means for raising and lowering said carrying wheels to allow the scows to come'in contact with the ground or to li them out of contact with the ground.

tion with a frame having forward and rear carrying wheels, and bars projecting laterally on each side of said machine, scows provided beneath said bars and attachedthereto, and means for raising and lowering said carrying wheels to lift said with the ound or allow them to come in contact with the ground a i 2. In an excavating machine, the combina- 3. In an excavating machine, the combination with an 'I-beam frame havingforwar and rear axles and carrying wheels therefor, an I-beam extending transversely :or said beyond the same on each side, scows provldedunder theends of said I-beams and secured thereto, andijmeans for raising and lowering said axlesand car-.

rying wheels.

'4. In an excavating tion with a frame, 0

machine, the combinae scows attached to said described,or a suitable traction. ap-

advanceof said drum and 1 ed to extend forward to an for the purpose specified.

'operatively connected.

.not be necessary for the moved to its dumping position portion of said links,

scows out; of contactframe on each side and extending lengthwise thereof, said scows havingupwardly turned ends and capable of supporting the machine in wet or marshy ground, forward and rear axles and carrying wheels provided under said frame between said scows and means for raising and lowering said axles and wheels.

v 5. In an excavating machine, the combination with a wheeledframe, of scows attached to said frame on eachside .of the machine,

means for raising the carrying wheels to allow the scows to contact with the ground, a drum mounted on the" forward. portion of said frame, an engine having-a driving connection with said drum, a cable wound on said drum, pulleys mounted on said frame in betweenfwhichsaid cable passes, and said cable being adaptanchoring post,

6. In an excavating machine, the corhbina wheels,

means for raising said'carrying wheels to allow the scows to contact with the ground, a winding drum mounted on said frame and a cable for said drum, pulleys between which said cable passes, a pulley mounted on said frame at one side of said" drum and around which said cable may'be passed toan anchoring post, machine may be moved latera power,

lly. a 7. In an excavating machine, the combina-' wherebysaid with a source of tionwith a'-revolving drum and a winding" cable therefor, of a crank shaft,

drum and connected at one end to the middle shoes attached to the s and having a pivotal other end-of said stra v s of said links, a rock pins slidable inarms mount-j edon said shaft, links pivotally mounted-on "said arms, friction straps inclosingLsaid'.

rock- I substancombination with a frame, of a wmdmgries of friction straps mlosingsald for tilt'in cavatin machinathe combine said drums", clamping straps inclosin said drums shoespivotally connected wi one end 0 'said; straps and means operativelyj 'w said straps around sai f drum and'cabletherefor, a crank shaft, a sesaid shoes with said crank shaft and 1 '12s tion with a' frame, Jo mounted there}.

ple crank shaft l-qeatadpbegwm connecting said shoes with said crank shaft, rock shafts having means controlling the tilting of said shoes and their engagement and engaging the teeth of said ratchet wheel and capable of release therefrom when said drum is under the strain of a load, and

means for tripping said ratchet.

11. In a machine of the'class described, the combination with a frame, of a drum, a

series-of clamping straps provided on each side of said drum, a multiple crank shaft, crank arms mounted on said shaft, means operatively'connecting said crank arms with said straps, each group of straps being arste saidratchet wheel, a toe pivoted on said pawl ranged to successively clamp said drum, one

set being adapted to revolve said drum in one direction and the other set in the other direction, and means within the control of the operator for controlling the engagement of sa'id'straps with said drum.

12. In a machine of the class described, the combination with a frame, a series of drums mounted on said frame, crank shafts for said drums and means for operatingthe same, friction clamps inclosing said drums, means operatively connecting said friction -clamps with their respective crank shafts, a series of operating levers and means actuated by the movement of said-levers for controlling the engagement of said friction clamps with their respective drums, substantially as described.

Inwitness whereof, I have hereunto set my hand this 2d day of Jan. 1909;

' CHARLES A. WHIPPLE. Witnesses: J. A. BYINGTON, v

RICHARD PAUL. 

